1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "win8/metro_driver/ime/input_scope.h"
10 #include "base/logging.h"
11 #include "ui/base/win/atl_module.h"
13 namespace metro_driver {
16 // An implementation of ITfInputScope interface.
17 // This implementation only covers ITfInputScope::GetInputScopes since built-in
18 // on-screen keyboard on Windows 8+ changes its layout depending on the returned
19 // value of this method.
20 // Although other advanced features of ITfInputScope such as phase list or
21 // regex support might be useful for IMEs or on-screen keyboards in future,
22 // no IME seems to be utilizing such features as of Windows 8.1.
23 class ATL_NO_VTABLE InputScopeImpl
24 : public CComObjectRootEx<CComMultiThreadModel>,
25 public ITfInputScope {
29 BEGIN_COM_MAP(InputScopeImpl)
30 COM_INTERFACE_ENTRY(ITfInputScope)
33 void Initialize(const std::vector<InputScope>& input_scopes) {
34 input_scopes_ = input_scopes;
38 // ITfInputScope overrides:
39 STDMETHOD(GetInputScopes)(InputScope** input_scopes, UINT* count) override {
40 if (!count || !input_scopes)
42 *input_scopes = static_cast<InputScope*>(
43 CoTaskMemAlloc(sizeof(InputScope) * input_scopes_.size()));
48 std::copy(input_scopes_.begin(), input_scopes_.end(), *input_scopes);
49 *count = static_cast<UINT>(input_scopes_.size());
52 STDMETHOD(GetPhrase)(BSTR** phrases, UINT* count) override {
55 STDMETHOD(GetRegularExpression)(BSTR* regexp) override {
58 STDMETHOD(GetSRGS)(BSTR* srgs) override {
61 STDMETHOD(GetXML)(BSTR* xml) override {
65 // Data which ITfInputScope::GetInputScopes should return.
66 std::vector<InputScope> input_scopes_;
68 DISALLOW_COPY_AND_ASSIGN(InputScopeImpl);
73 base::win::ScopedComPtr<ITfInputScope>
74 CreteInputScope(const std::vector<InputScope>& input_scopes) {
75 ui::win::CreateATLModuleIfNeeded();
76 CComObject<InputScopeImpl>* object = NULL;
77 HRESULT hr = CComObject<InputScopeImpl>::CreateInstance(&object);
79 LOG(ERROR) << "CComObject<InputScopeImpl>::CreateInstance failed. hr = "
81 return base::win::ScopedComPtr<ITfInputScope>();
83 object->Initialize(input_scopes);
84 return base::win::ScopedComPtr<ITfInputScope>(object);
87 } // namespace metro_driver